Wrench.



I. I. WElSNEK.

5 WRENCH. I N FILED JU APPLICA I 2.1915. 1,164,149. Patented Dec.14,1915.

EIEiE- INF/ENTOR f 4%. John I Mew/2672f A TTORNEY,

STATES PATENT GFFICE.

JOHN I. WEISNEK, OF SHERIDAN, WYOMING, ASSGNOR OF ONE-HALF T HARRY H.

EVANS, OF SHERIDAN, W YOMING.

WRENCH.

Specification of Letters Patent.

Patented Dec. 14-, 1915.

To all whom it may concern Be it known that 1, JOHN I. VVEISNEK, acitizen of the United States, residing at Sheridan, in the county ofSheridan and State of r j g, have invented certain other device to beturned'with the wrench.

The invention further embraces means for causing the jaws to firmly gripa nut or other object after-they have been quickly adjusted intoengagement therewith.

Other objects of the invention will hereinafter appear, and in orderthat said invention may be fully understood, reference will noW be madeto the accompanying drawing, in which:

Figure 1 is a side elevr. :n of a wrench embodying my invention. Big. 2is a side elevation of the wrench with a portion thereof in verticalsection. Fig. 3 is a vertical cross section on line HIHI of Fig. 1. Fig.4 is a detail isometric view of a worm and a holder therefor,constituting important features of the invention. Fig; 5 is a brokenhorizontal section on line VV of Fig. 1, with the worm and its holderremoved.-

In csirrying out the invention, 1 employ a toothed-bar it, provided atone end with a handle 21nd at its opposite end with a fixed jaw Thetoothed-har- 1 also is: provided at one side with a longitudinalguideway 4, for a purpose which will here iiafter appear.

5 designates a movable jaw integral with a sleeve 6 slidably mountedupon the toothed bar '1, so that the movable jaw may be adjusted towardor away from the fixed jaw The sleeve 6 is loosely mounted upon thetoothed-bar 1, so that it maybe quickly slid in either directionthereon, but in order that there may not be undue lateral play betweensaid toothed-bar 1 and the sleeve 6,

I provide the latter with integral lugs 7 which snugly fit within theguideway 4, but are free to move longitudinally ther in.

8 designates a holder, preferably, in the form of yoke surmounted by athumbpiece 9 and a pair of depending arms 10, which latter have verticalmovement in vertical grooves 11 in the sleeve 6. The arms 10 have slots12 for the passage of the toothedbar 1, and the thumb-piece 9 has arecess 13 to receive the upper portion of a coil spring l i bearing downupon the top of the sleeve 6, see Figs. 2 and 3. j

15 designates a gear, preferably, in the form of a worm journaled in thelower 'ends of the arms 10 and adapted to interinesh with the teeth ofthe bar 1.

When a. nut or other device is to be gripped, the wrench is placed inposition thereon with the inner wall of the fixed jaw 3 and theunderside of the toothed-bar l engaging said device. Pressure is thenapplied to the thumb-piece 9 to overcome the resistance of the spring1-4; and depress the yoke 8 until the u 15 clears the teeth of the bar1., as disclosed. by Fig. 2. The sleeve is then adjusted forward untilthe movable jaw 55 engages the opposite side of the device from thatengaged by the fixed jaw 23. The spring Ti l is then permitted to raisethe oke S and thrust the gear 15 into engage SO ment with the rackteeth. when further ad iistmeiit of the jaw I) may be had, iif desired,to firmly grip the device. If desired the periphery of the worm teethmay be notched or knurled, so that a firmer grip may be had on said wormwhen rotating the some.

While I have shown and described the preferred" form of my invention, Ireserve the right to make such changes in the construction, arrangementand proportion of parts as properly fall within the spirit and scope ofthe claim.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is:

In combination. with the rack bar of a Wrench, a sleeve slidable thereonand hmi 11;; two pairs of transverse grooves disposed one pair on eachside of the sleeve, a Wm'm carrier c0mp0sed of yoke having apertures toreceive the bar, said yom'b *ing its sides of a thickness so as to bereceived in said tranaversa gmoves 0.1: a coilv sprin seated an the.j-QQVG and cm gm? with the tap 0:1: the yoke. in 'iiesmncny W 1.1011301I M231: my :signm tum, in film presence 0' two N JULY E 1.

omxsim,

"he sleeve, and 1! O

